content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ------------------
   * MeterInterval.java
   * ------------------
   * (C) Copyright 2005-2012, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 22-Mar-2005 : Version 1 (DG);
   * 29-Mar-2005 : Fixed serialization (DG);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.plot;
  
  import java.awt.BasicStroke;
  import java.awt.Color;
  import java.awt.Paint;
  import java.awt.Stroke;
  import java.io.IOException;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  import java.io.Serializable;
  
  import org.jfree.chart.util.ObjectUtilities;
  import org.jfree.chart.util.PaintUtilities;
  import org.jfree.chart.util.SerialUtilities;
  import org.jfree.data.Range;
  
  /**
   * An interval to be highlighted on a {@link MeterPlot}.  Instances of this
   * class are immutable.
   */
  public class MeterInterval implements Serializable {
  
      /** For serialization. */
      private static final long serialVersionUID = 1530982090622488257L;
  
      /** The interval label. */
      private String label;
  
      /** The interval range. */
      private Range range;
  
      /** The outline paint (used for the arc marking the interval). */
      private transient Paint outlinePaint;
  
      /** The outline stroke (used for the arc marking the interval). */
      private transient Stroke outlineStroke;
  
      /** The background paint for the interval. */
      private transient Paint backgroundPaint;
  
      /**
       * Creates a new interval.
       *
       * @param label  the label (<code>null</code> not permitted).
       * @param range  the range (<code>null</code> not permitted).
       */
      public MeterInterval(String label, Range range) {
          this(label, range, Color.YELLOW, new BasicStroke(2.0f), null);
      }
  
      /**
       * Creates a new interval.
       *
       * @param label  the label (<code>null</code> not permitted).
       * @param range  the range (<code>null</code> not permitted).
       * @param outlinePaint  the outline paint (<code>null</code> permitted).
       * @param outlineStroke  the outline stroke (<code>null</code> permitted).
       * @param backgroundPaint  the background paint (<code>null</code>
       *                         permitted).
       */
      public MeterInterval(String label, Range range, Paint outlinePaint,
                           Stroke outlineStroke, Paint backgroundPaint) {
          if (label == null) {
              throw new IllegalArgumentException("Null 'label' argument.");
          }
          if (range == null) {
              throw new IllegalArgumentException("Null 'range' argument.");
          }
          this.label = label;
          this.range = range;
          this.outlinePaint = outlinePaint;
          this.outlineStroke = outlineStroke;
          this.backgroundPaint = backgroundPaint;
      }
  
      /**
       * Returns the label.
       *
       * @return The label (never <code>null</code>).
       */
      public String getLabel() {
          return this.label;
      }
  
      /**
       * Returns the range.
       *
       * @return The range (never <code>null</code>).
       */
      public Range getRange() {
          return this.range;
      }
  
      /**
       * Returns the background paint.  If <code>null</code>, the background
       * should remain unfilled.
       *
       * @return The background paint (possibly <code>null</code>).
       */
      public Paint getBackgroundPaint() {
          return this.backgroundPaint;
      }
  
      /**
       * Returns the outline paint.
       *
       * @return The outline paint (possibly <code>null</code>).
       */
      public Paint getOutlinePaint() {
          return this.outlinePaint;
      }
  
      /**
       * Returns the outline stroke.
       *
       * @return The outline stroke (possibly <code>null</code>).
       */
      public Stroke getOutlineStroke() {
          return this.outlineStroke;
      }
  
      /**
       * Checks this instance for equality with an arbitrary object.
       *
       * @param obj  the object (<code>null</code> permitted).
       *
       * @return A boolean.
       */
      @Override
      public boolean equals(Object obj) {
          if (obj == this) {
              return true;
          }
          if (!(obj instanceof MeterInterval)) {
              return false;
          }
          MeterInterval that = (MeterInterval) obj;
          if (!this.label.equals(that.label)) {
              return false;
          }
          if (!this.range.equals(that.range)) {
              return false;
          }
          if (!PaintUtilities.equal(this.outlinePaint, that.outlinePaint)) {
              return false;
          }
          if (!ObjectUtilities.equal(this.outlineStroke, that.outlineStroke)) {
              return false;
          }
          if (!PaintUtilities.equal(this.backgroundPaint, that.backgroundPaint)) {
              return false;
          }
          return true;
      }
  
      /**
       * Provides serialization support.
       *
       * @param stream  the output stream.
       *
       * @throws IOException  if there is an I/O error.
       */
      private void writeObject(ObjectOutputStream stream) throws IOException {
          stream.defaultWriteObject();
          SerialUtilities.writePaint(this.outlinePaint, stream);
          SerialUtilities.writeStroke(this.outlineStroke, stream);
          SerialUtilities.writePaint(this.backgroundPaint, stream);
      }
  
      /**
       * Provides serialization support.
       *
       * @param stream  the input stream.
       *
       * @throws IOException  if there is an I/O error.
       * @throws ClassNotFoundException  if there is a classpath problem.
       */
      private void readObject(ObjectInputStream stream)
          throws IOException, ClassNotFoundException {
          stream.defaultReadObject();
          this.outlinePaint = SerialUtilities.readPaint(stream);
          this.outlineStroke = SerialUtilities.readStroke(stream);
          this.backgroundPaint = SerialUtilities.readPaint(stream);
      }
  
  }
  